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发表于 2011-1-22 10:22
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来自: 日本
Pipes piercing the collision bulkhead shall be fitted with suitable valves operable from above the freeboard deck and the valve chest shall be secured at the bulkhead inside the forepeak. The valves may be fitted on the after side of the collision bulkhead provided that
the valves are readily accessible under all service conditions and the space in which they are located is not a cargo space. All valves shall be of steel,bronze or other approved ductile material. Valves of ordinary cast iron or similar material are not acceptable.
以上是2004的SOLAS
下面是09版的SOLAS
Except as provided in paragraph 5.2, the collision bulkhead may be pierced below the bulkhead deck by not more than one pipe for dealing with fluid in the forepeak tank, provided that the pipe is fitted with a screw-down valve capable of being operated from above the bulkhead deck, the valve chest being secured inside the forepeak to the collision bulkhead. The Administration may, however, authorize the fitting of this valve on the after side of the collision bulkhead provided that the valve is readily accessible under all
service conditions and the space in which it is located is not a cargo space. All valves shall be of steel, bronze or other approved ductile material. Valves of ordinary cast iron or similar material are not acceptable.
然后09的SOLAS上面写了Unless expressly provided otherwise, this chapter shall apply to ships the keels of which are laid or which are at a similar stage of construction on or after 1 January 2009.
所以本人认为09年7月1号之前铺龙骨或类似建造的就可以用蝶阀的,因为09的SOLAS才规定要用screw-down valve 的 |
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